Nuisance, nuisance smoke exhaust systems and smoke are two parts (BuFen) is saying. Now senior Hou Jian made at the same time to the extent, spatial development (FaZhan) similarly to the depth of the underground development (FaZhan), is made in high-level health underground chamber, harm, exhaust system is particularly critical. Of the Planning Unit, while speaking, we should pay more attention in the planning of the harm, smoke planning. 1. Commissioning number less than two, one to control power, one observes fan operation, abnormal phenomenon immediately stop inspection; First check the direction of rotation is correct; fan during each phase of the operation should be checked whether the current balance, current is exceed the rated current; if not normal, Francis exhaust fan should stop checking. Five minutes after the operation, exhaust fan buy, down to check whether the fan abnormal phenomenon, confirmed that no anomalies start running again. 2. The two-speed fan when commissioning, Jingdezhen exhaust fan, you should start low, and check the direction of rotation is correct; after resting fan must be renewed at the start speed to prevent reverse rotation speed, exhaust fan factory, causing the switch trip and motor damage. Two-speed fan control theory and start debugging Fan Related Products: The fiberglass roof fan, induced fan, centrifugal fan, induced fan, FRP fan, explosion-proof fans and other fans of the start-up and commissioning a fan to normal operation speed, should be tested for the fan of each phase input power supply is normal, the fan operating current not exceed the rated current, if the operating current exceeds the rated current, the fan should check the supply voltage is normal. Exhaust fan selection, Chenyu air conditioning (certified), Jingdezhen exhaust fan by Wu Cheng Chen-yu air-conditioning Limited. Wu Cheng Chen-yu air-conditioning Co. (www.wccykt.com) is an industry leader in Shandong Dezhou, fans, ventilation equipment, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs ??? Chen Yu-conditioned in leadership with the staff warmly welcome all inquiries negotiations to create Chenyu air conditioning better future.